/* Trainer Way · Generador de imagenes — estilos */

:root {
  --bg: #0a0a0a;
  --bg-2: #141414;
  --bg-3: #1a1a1a;
  --orange: #e8500a;
  --orange-hover: #ff5e10;
  --gold: #c9a84c;
  --text: #ffffff;
  --text-muted: #a0a0a0;
  --border: #262626;
  --border-strong: #333333;
  --error: #ef4444;
  --success: #10b981;

  --r-btn: 8px;
  --r-card: 12px;
  --r-lg: 16px;

  --font-display: "Bebas Neue", "Impact", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

* {
  box-sizing: border-box;
}
[hidden] {
  display: none !important;
}
html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img {
  display: block;
  max-width: 100%;
}
button {
  font-family: inherit;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  border: 0;
}
.mono {
  font-family: var(--font-mono);
}
.muted {
  color: var(--text-muted);
}
.h-display {
  font-family: var(--font-display);
  letter-spacing: 0.04em;
  font-weight: 400;
  text-transform: uppercase;
  margin: 0;
}

.screen {
  min-height: 100vh;
}
.screen[hidden] {
  display: none;
}

/* ---------- LOGIN ---------- */
.screen-login {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
  background:
    radial-gradient(1200px 600px at 50% -10%, rgba(232, 80, 10, 0.06), transparent 60%),
    var(--bg);
}
.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 40px 32px;
  text-align: center;
}
.login-logo {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
}
.login-card h1 {
  font-size: 36px;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}
.login-card .muted {
  margin: 0 0 28px;
  font-size: 14px;
}
.login-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.login-form input[type="password"] {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-btn);
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s ease;
}
.login-form input[type="password"]:focus {
  border-color: var(--orange);
}
.error-text {
  margin: 4px 0 0;
  color: var(--error);
  font-size: 13px;
  font-weight: 500;
  text-align: left;
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: var(--r-btn);
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  user-select: none;
}
.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}
.btn-lg {
  padding: 0 18px;
  height: 56px;
  font-size: 15px;
}
.btn-sm {
  padding: 8px 12px;
  font-size: 13px;
}
.btn-primary {
  background: var(--orange);
  color: #fff;
  border-color: var(--orange);
}
.btn-primary:hover:not(:disabled) {
  background: var(--orange-hover);
  border-color: var(--orange-hover);
}
.btn-secondary {
  background: var(--bg-3);
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-secondary:hover:not(:disabled) {
  border-color: var(--text-muted);
}
.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border);
}
.btn-ghost:hover:not(:disabled) {
  color: var(--text);
  border-color: var(--border-strong);
}

/* ---------- APP LAYOUT ---------- */
.screen-app {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 24px 64px;
}
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 20px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-logo {
  width: 32px;
  height: 32px;
}
.brand-title {
  font-size: 22px;
  letter-spacing: 0.05em;
}

.app-grid {
  display: grid;
  grid-template-columns: minmax(0, 420px) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}
@media (max-width: 900px) {
  .app-grid {
    grid-template-columns: 1fr;
  }
}

.panel {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  padding: 24px;
}
.panel-controls {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
@media (min-width: 901px) {
  .panel-controls {
    position: sticky;
    top: 24px;
  }
}
.panel-result {
  min-height: 420px;
  display: flex;
  flex-direction: column;
}

/* ---------- FIELDS ---------- */
.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.field-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}
textarea#prompt {
  width: 100%;
  min-height: 160px;
  padding: 14px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-btn);
  color: var(--text);
  font-size: 16px;
  font-family: inherit;
  line-height: 1.55;
  resize: vertical;
  outline: none;
  transition: border-color 0.15s ease;
}
textarea#prompt:focus {
  border-color: var(--orange);
}
.char-count {
  align-self: flex-end;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
}

/* ---------- REFERENCE UPLOADER ---------- */
.optional {
  font-weight: 400;
  text-transform: lowercase;
  letter-spacing: 0;
  color: var(--text-muted);
  margin-left: 4px;
}
.ref-uploader {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.ref-drop {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg);
  border: 1px dashed var(--border-strong);
  border-radius: var(--r-btn);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.ref-drop:hover,
.ref-drop.dragover {
  border-color: var(--orange);
  background: rgba(232, 80, 10, 0.04);
}
.ref-drop-icon {
  color: var(--text-muted);
  flex-shrink: 0;
}
.ref-drop-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 13px;
  line-height: 1.3;
}
.ref-drop-text strong {
  font-weight: 600;
}
.ref-drop-text .muted {
  font-size: 11px;
}
.ref-preview {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-btn);
}
.ref-preview img {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--border);
}
.ref-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
  min-width: 0;
}
.ref-name {
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ref-size {
  font-size: 11px;
  color: var(--text-muted);
}
.ref-hint {
  font-size: 11px;
  margin: 0;
  line-height: 1.4;
}

/* ---------- CARD RADIOS ---------- */
.card-radios {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.card-radios-2 {
  grid-template-columns: repeat(2, 1fr);
}
.card-radio {
  position: relative;
  cursor: pointer;
}
.card-radio input {
  position: absolute;
  opacity: 0;
  inset: 0;
  cursor: pointer;
}
.card-radio-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-btn);
  transition: border-color 0.15s ease, background 0.15s ease;
}
.card-radio-title {
  font-weight: 600;
  font-size: 14px;
}
.card-radio-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
}
.card-radio input:checked + .card-radio-body {
  border-color: var(--orange);
  background: rgba(232, 80, 10, 0.08);
}
.card-radio input:focus-visible + .card-radio-body {
  border-color: var(--orange);
  box-shadow: 0 0 0 2px rgba(232, 80, 10, 0.25);
}

/* ---------- TOGGLE ---------- */
.toggle {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  user-select: none;
}
.toggle input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.toggle-track {
  position: relative;
  width: 38px;
  height: 22px;
  background: var(--bg-3);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  transition: background 0.15s ease, border-color 0.15s ease;
  flex-shrink: 0;
}
.toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: transform 0.15s ease, background 0.15s ease;
}
.toggle input:checked + .toggle-track {
  background: rgba(232, 80, 10, 0.25);
  border-color: var(--orange);
}
.toggle input:checked + .toggle-track .toggle-thumb {
  transform: translateX(16px);
  background: var(--orange);
}
.toggle-label {
  font-size: 14px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.info {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  font-size: 11px;
  color: var(--text-muted);
  cursor: help;
  font-weight: 600;
}

/* ---------- RESULT ---------- */
.error-banner {
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fca5a5;
  border-radius: var(--r-btn);
  padding: 12px 14px;
  font-size: 14px;
  margin-bottom: 16px;
}
.result-empty,
.result-loading {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  min-height: 360px;
  color: var(--text-muted);
}
.result-empty-icon {
  color: var(--border-strong);
}
.result-image img {
  width: 100%;
  height: auto;
  border-radius: var(--r-btn);
  border: 1px solid var(--border);
  background: var(--bg);
}
.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.result-meta {
  margin: 12px 0 0;
  color: var(--text-muted);
  font-size: 11px;
  letter-spacing: 0.02em;
}

/* ---------- SPINNER ---------- */
.spinner {
  width: 36px;
  height: 36px;
  border: 2px solid var(--border-strong);
  border-top-color: var(--orange);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ---------- GALLERY ---------- */
.gallery {
  margin-top: 32px;
  border-top: 1px solid var(--border);
  padding-top: 24px;
}
.gallery-toggle {
  display: flex;
  align-items: center;
  gap: 12px;
  background: transparent;
  border: 0;
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 0;
}
.gallery-count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
  padding: 2px 8px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  letter-spacing: 0;
  text-transform: none;
}
.gallery-chevron {
  margin-left: auto;
  color: var(--text-muted);
  transition: transform 0.15s ease;
}
.gallery-toggle[aria-expanded="false"] .gallery-chevron {
  transform: rotate(-90deg);
}
.gallery-grid {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 8px;
}
.gallery-toggle[aria-expanded="false"] + .gallery-grid {
  display: none;
}
.gallery-item {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--r-btn);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg);
  cursor: pointer;
  padding: 0;
  display: block;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.gallery-item:hover {
  border-color: var(--orange);
}
.gallery-item.active {
  border-color: var(--orange);
  box-shadow: 0 0 0 1px var(--orange);
}